Home / 42,646.40-63,979.20-25,107.20

Finding the Fourth Proportional to 42,646.40, 63,979.20 and 25,107.20

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Solution

The fourth proportional to 42,646.40, 63,979.20 and 25,107.20 is: 37,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,646.40 : 63,979.20 = 25,107.20 : x
  2. Step 2: Convert to fraction form
    42,646.40/63,979.20 = 25,107.20/x
  3. Step 3: Cross multiply
    42,646.40x = 63,979.20 × 25,107.20
  4. Step 4: Simplify right side
    42,646.40x = 1,606,338,570.24
  5. Step 5: Solve for x
    x = 1,606,338,570.24/42,646.40
  6. Step 6: Final answer
    x = 37,666.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.